@echo off

setlocal

@REM This script is originally from:
@REM http://blogs.msdn.com/adioltean/archive/2005/01/05/346793.aspx

@REM test if we are called by VSHADOW
if NOT "%CALLBACK_SCRIPT%"=="" goto :IS_CALLBACK

@REM
@REM Get the source and destination path
@REM

set SOURCE_DRIVE_LETTER=%~d1
set SOURCE_RELATIVE_PATH=%~pnx1
set DESTINATION_PATH=%2

@REM
@REM Create the shadow copy - and generate env variables into a temporary script.
@REM
@REM Then, while the shadow is still live
@REM recursively execute the same script.
@REM

@echo ...Determine the scripts to be executed/generated...

set CALLBACK_SCRIPT=%~dpnx0
set TEMP_GENERATED_SCRIPT=GeneratedVarsTempScript.cmd

@echo ...Creating the shadow copy...

"%~dp0\vshadow.exe" -script="%TEMP_GENERATED_SCRIPT%" -exec="%CALLBACK_SCRIPT%" %SOURCE_DRIVE_LETTER%

del /f "%TEMP_GENERATED_SCRIPT%"

@goto :EOF

:IS_CALLBACK
setlocal

@REM
@REM This generated script should set the SHADOW_DEVICE_1 env variable
@REM

@echo ...Obtaining the shadow copy device name...

call "%TEMP_GENERATED_SCRIPT%"

@REM
@REM This should copy the file to the right location
@REM

@echo ...Copying from the shadow copy to the destination path...

copy "%SHADOW_DEVICE_1%\%SOURCE_RELATIVE_PATH%" %DESTINATION_PATH%